Grass and Electric.
defeat all the other gym leaders
you must beat all other gym leaders
There isn't a second encounter with gym leaders
use Pokemon diamond/peral/platinum's effect calculator and find out what the gym leaders weakness is
It is not possible to reverse the order of Gym Leaders in Pokemon Pearl. This is due to how the story of the game is written. And the fact that the 8th Gym Leader will be impossible to beat at the start of the game.
To get the 8th Gym Leader to return to his Gym in Viridian City, you must defeat all 7 other Gym Leaders.
first of all, the other people in the second gym leader's gym are not gym leaders. they are just trainers who use grass-type pokemon, just like the gym leader. they are sometimes hidden behind trees and one or two is hidden in some flowers.
The Unova gym leaders are; !st gym: Cilen, Chili, and Cress 2nd gym: Lenova 3rd gym: Burgh 4th gym: Elesa 5th gym: Clay 6th gym: Skyla 7th gym: Brycen 8th gym: Drayden(pokemon black) and Iris(pokemon white)
You need to have defeat the other gym leaders of Kanto first, after that you will find Blue on Cinnabar Island, talk to him and he will return to his gym.
yes there is 8 gyms the gym leaders are called chili,cress,cilan they are the first gym leaders. lenora is the 2nd gym leade.burgh is the 3rd.elesa is the 4th.clay is the 5th.skyla is the 6th brycen is the 7th and drayden i the 8th
all you need is a ground type, but for octillery, maybe use an electric Pokemon or grass one, or it will slaughter your ground one otherwise
To get to the 8th gym, you needed to have met Blue on Cinnabar Island, you will find him looking at the volcano there. You must have defeated the other 7 gym leaders before he will consider battling you. He will return to his gym, allowing you to face him.